28648367 has 8 divisors (see below), whose sum is σ = 31328640. Its totient is φ = 25980760.

The previous prime is 28648357. The next prime is 28648369. The reversal of 28648367 is 76384682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28648367 - 2⁶ = 28648303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28648369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1934 + ... + 7812.

It is an arithmetic number, because the mean of its divisors is an integer number (3916080).

Almost surely, 2^28648367 is an apocalyptic number.

28648367 is a deficient number, since it is larger than the sum of its proper divisors (2680273).

28648367 is a wasteful number, since it uses less digits than its factorization.

28648367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333.

The product of its digits is 387072, while the sum is 44.

The square root of 28648367 is about 5352.4169306959. The cubic root of 28648367 is about 305.9848733035.

The spelling of 28648367 in words is "twenty-eight million, six hundred forty-eight thousand, three hundred sixty-seven".